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HD 30332


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A photometric survey of the eclipsing RS CVn-type system RZ Eridani - Starspot variability, circumstellar matter, tidal evolution
Results are presented of monitoring of the RS CVn-type eclipsing binaryRZ Eridani, observed in the seven colors of the Geneva photometricsystem between November 1977 and April 1989. It is shown that theprimary is an A8-F0IV star, which was stable during the 12 years of thesurvey. The secondary component, a G8-K0IV-III star, exhibits threekinds of stellar variability: a starspot effect with a period of about35 d (stellar rotation), varying from year to year; a reflection effectof the light from the primary component, with a period equal to theorbital one (the orbital period); and a long-term variability,tentatively attributed to be due to a stellar activity cycle.

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观测天体数据

星座:波江座
右阿森松:04h46m09.49s
赤纬:-11°33'40.3"
视星:7.656
距离:304.878 天文距离
右阿森松适当运动:3.7
赤纬适当运动:6.6
B-T magnitude:7.634
V-T magnitude:7.655

目录:
适当名称   (Edit)
HD 1989HD 30332
TYCHO-2 2000TYC 5325-1515-1
USNO-A2.0USNO-A2 0750-01094317
HIPHIP 22169

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